CN205486617U - Fire alarm ware based on singlechip - Google Patents
Fire alarm ware based on singlechip Download PDFInfo
- Publication number
- CN205486617U CN205486617U CN201620252298.XU CN201620252298U CN205486617U CN 205486617 U CN205486617 U CN 205486617U CN 201620252298 U CN201620252298 U CN 201620252298U CN 205486617 U CN205486617 U CN 205486617U
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- CN
- China
- Prior art keywords
- alarm
- circuit
- pcb board
- scm based
- based fire
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a fire alarm ware based on singlechip, including mount pad, shell, PCB board, temperature sensor, smoke transducer, pilot lamp, buzzer, contain control circuit on the PCB board and set up between mount pad and shell, temperature sensor, smoke transducer, pilot lamp, buzzer equipartition are on the circumference of PCB board. The utility model discloses a content of indoor smog can be surveyd through setting up the through -hole on the base to the fire alarm ware, detects indoor temperature, effectual fire hazard prevention's in advance emergence.
Description
Technical field
The present invention relates to a kind of alarm, particularly relate to a kind of SCM Based fire-alarm.
Background technology
Fire be people live, work in the unfortunate event that happens occasionally, fire-alarm can make you find the condition of a fire, elimination accident early, ensure personal safety and safety of property.At present, at marketed many heat detectors, fixed temperature detector, can be used to make fire alarm, but its structure is the most complex, cost is the highest.
Summary of the invention
The deficiency existed for prior art, the purpose of the present invention is that and provides a kind of SCM Based fire-alarm, by the through hole being arranged on base, can measure the content of indoor smog, detect indoor temperature, the generation of effective fire preventing.
To achieve these goals, the technical solution used in the present invention is such that a kind of SCM Based fire-alarm, including mounting seat, shell, pcb board, temperature sensor, Smoke Sensor, display lamp, buzzer, described pcb board comprises control circuit and is arranged between mounting seat and shell；Described temperature sensor, Smoke Sensor, display lamp, buzzer are distributed on the circumference of pcb board.
As a kind of preferred version, described mounting seat is provided with through hole, and runs through pcb board and shell.
As a kind of preferred version, described control circuit includes single-chip microcomputer and the temperature signal regulation circuit being connected with single-chip microcomputer, smoke signal modulate circuit, buzzer alarm circuit, optical alarm circuit, data acquisition circuit.
As a kind of preferred version, the model of described single-chip microcomputer is AT89C51, also comprises reset circuit and crystal oscillating circuit.
As a kind of preferred version, the model of described temperature sensor is LM94022.
As a kind of preferred version, the model of described Smoke Sensor is NIS-09C.
As a kind of preferred version, described data acquisition circuit comprises analog-digital chip, d type flip flop, address latch.
Compared with prior art, beneficial effects of the present invention:
1. sound, light dual-alarm function；
2. system failure warning function, when hardware fault occurs in system, can send failure alarm signal；
3. abnormal alarm function, when environment occurs abnormal, can send abnormal alarm signal, come into the picture, avoid the generation of fire as far as possible；
4. fire alarm function, once fire really occur, can send acousto-optic alarm of fire immediately.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the top view of the present invention；
Fig. 3 is the theory diagram of control circuit in the present invention；
Fig. 4 is the circuit diagram of control circuit in the present invention；
Fig. 5 is reset circuit and the crystal oscillating circuit of single-chip microcomputer in the present invention；
Fig. 6 is the temperature signal regulation circuit in the present invention；
Fig. 7 is the smoke signal modulate circuit in the present invention；
Fig. 8 is the buzzer alarm circuit in the present invention；
Fig. 9 is the optical alarm circuit in the present invention；
Figure 10 is the data acquisition circuit in the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.Following example are only used for clearly illustrating technical scheme, and can not limit the scope of the invention with this.
Embodiment:
As shown in Figure 1 and Figure 2, a kind of SCM Based fire-alarm, including mounting seat 1, shell 2, pcb board 3, temperature sensor 4, Smoke Sensor 5, display lamp 6, buzzer 7, described pcb board 3 comprises control circuit and is arranged between mounting seat 1 and shell 2；Described temperature sensor 4, Smoke Sensor 5, display lamp 6, buzzer 7 are distributed on the circumference of pcb board 3；It is provided with through hole 8 in described mounting seat 1, and runs through pcb board 3 and shell 2.
As shown in Figure 3, Figure 4, described control circuit includes single-chip microcomputer 30 and the temperature signal regulation circuit 31 being connected with single-chip microcomputer 30, smoke signal modulate circuit 32, buzzer alarm circuit 34, optical alarm circuit 35, data acquisition circuit 33；Shown single-chip microcomputer 30 is core controller, first pass through temperature sensor 4, scene temperature, smog Germany non-electrical signal are converted to the signal of telecommunication by Smoke Sensor 5, temperature signal regulation circuit 31, smoke signal modulate circuit 32 are acquired conversion by data acquisition circuit 33 after being nursed one's health by the signal of telecommunication that temperature sensor 4, Smoke Sensor 5 export, single-chip microcomputer 30 judges scene whether breaking out of fire, if it occur that fire, reported to the police by buzzer alarm circuit 34, optical alarm circuit 35.
As it is shown in figure 5, the model of described single-chip microcomputer 30 is AT89C51, also comprise reset circuit and crystal oscillating circuit；Described reset circuit provides reset signal when powering on, until after power good, cancelling reset signal；Described crystal oscillating circuit provides clock signal for single-chip microcomputer 30 work.
The model of the preferred described temperature sensor 4 of the present invention is LM94022, owing to the analogue signal of temperature sensor 4 output is fainter, and containing interference signal, so needing to be amplified by signal and filter, temperature sensor 4 uses high-precision analog to export CMOS temperature transmitter LM94022, the final stage of this temperature sensor 4 is for recommending output, and output voltage is inversely proportional to the temperature of sensing, i.e. temperature more high output voltage is the lowest；4 different gains can be provided to allow user select voluntarily, including-5.5mV/ DEG C ,-8.2 mV/DEG C ,-10.9mV/DEG C and-13.6mV/DEG C, the present embodiment temperature sensor 4 sensitivity selects-5.5mV/ DEG C, so GS0 and GS1 port all ground connection of LM94022, described temperature signal regulation circuit 31 is as shown in Figure 6；Owing to amplifier LM324 U2A, UWC of temperature signal regulation circuit 31 connect DC source, circuit has direct current, so being provided with electric capacity C1, C2 every straight-through friendship in circuit.
The model of the preferred described Smoke Sensor 5 of the present invention is NIS-09C, and Smoke Sensor 5 output voltage is relatively big, can reach a few volt, it is not necessary to amplify smoke signal, it is only necessary to signal filtering being processed, smoke signal modulate circuit 32 is as shown in Figure 7；Owing to the amplifier LM324 U2B of smoke signal modulate circuit 32 connects DC source, circuit has direct current, so being provided with the electric capacity C7 every straight-through friendship in circuit.
The buzzer alarm circuit 34 being illustrated in figure 8 in the present invention, is controlled by the P10 pin of single-chip microcomputer 30, and when the level of P10 output is high level, audion Q3 turns on, and the electric current of buzzer forms loop, sends audible alarm；Otherwise, audion Q3 ends, and buzzer does not send sound.
The optical alarm circuit 35 being illustrated in figure 9 in the present invention, wherein the P2 mouth of single-chip microcomputer 30 is controlled, P2.3～P2.6 of P2 mouth controls 4 light emitting diodes D5, D6, D7, D8 respectively, give light to report to the police, the lamp that P2.3～P2.6 of single-chip microcomputer 30 controls is followed successively by redness (fire signal lamp), red (abnormal signal lamp), yellow (emergency light) and green (normal signal lamp), when P2.3～the P2.6 output low level of single-chip microcomputer 30, corresponding signal lights will luminous alarm.
Being the light data acquisition circuit 33 in the present invention as shown in Figure 10, described data acquisition circuit 33 comprises analog-digital chip, d type flip flop, address latch；In the present embodiment, analog-digital chip is ADC0809, and the clock signal of its work is 500KHz, and because not having clock circuit inside it, clock signal is provided by the ALE port of external microcontroller 30；When the ALE port of single-chip microcomputer 30 does not accesses external memory storage, the positive pulse signal that the ALE end of single-chip microcomputer 30 is fixed with 1/6 output of oscillation frequency clock, therefore crystal oscillator sets 12MKz, then through frequency-halving circuit, single-chip microcomputer 30 can be to the clock signal of analog-digital chip ADC0809 output 500KHz；Described d type flip flop realizes signal two divided-frequency, R, S end ground connection of d type flip flop, and D termination Q is non-, and Q end is as outfan, the ALED end of CLK termination single-chip microcomputer 30；Fire-alarm collecting temperature, smoke signal due to the present invention, the temperature of process conditioning, smoke signal respectively enter IN-0 and the IN-1 port of analog-digital chip ADC0809, remaining input pin ground connection, 8 digital quantity output pins connect the P0 mouth of single-chip microcomputer 30, the P0 mouth of single-chip microcomputer 30 receives analog-digital chip ADC0809 transmission and carrys out 8 bit digital quantity, 8 bit address to analog-digital chip ADC0809 output latch through address latch, and described address latch is 74LS373.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, on the premise of without departing from the technology of the present invention principle; can also make some improvement and deformation, these improve and deformation also should be regarded as protection scope of the present invention.
Claims (7)
1. a SCM Based fire-alarm, it is characterised in that: include mounting seat, shell, pcb board, temperature sensor, Smoke Sensor, display lamp, buzzer, described pcb board comprises control circuit and is arranged between mounting seat and shell；Described temperature sensor, Smoke Sensor, display lamp, buzzer are distributed on the circumference of pcb board.
The SCM Based fire-alarm of one the most according to claim 1, it is characterised in that: it is provided with through hole in described mounting seat, and runs through pcb board and shell.
The SCM Based fire-alarm of one the most according to claim 1, it is characterised in that: described control circuit includes single-chip microcomputer and the temperature signal regulation circuit being connected with single-chip microcomputer, smoke signal modulate circuit, buzzer alarm circuit, optical alarm circuit, data acquisition circuit.
The SCM Based fire-alarm of one the most according to claim 3, it is characterised in that: the model of described single-chip microcomputer is AT89C51, also comprises reset circuit and crystal oscillating circuit.
The SCM Based fire-alarm of one the most according to claim 4, it is characterised in that: the model of described temperature sensor is LM94022.
The SCM Based fire-alarm of one the most according to claim 5, it is characterised in that: the model of described Smoke Sensor is NIS-09C.
The SCM Based fire-alarm of one the most according to claim 6, it is characterised in that: described data acquisition circuit comprises analog-digital chip, d type flip flop, address latch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620252298.XU CN205486617U (en) | 2016-03-30 | 2016-03-30 | Fire alarm ware based on singlechip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620252298.XU CN205486617U (en) | 2016-03-30 | 2016-03-30 | Fire alarm ware based on singlechip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205486617U true CN205486617U (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620252298.XU Expired - Fee Related CN205486617U (en) | 2016-03-30 | 2016-03-30 | Fire alarm ware based on singlechip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205486617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105608829A (en) * | 2016-03-30 | 2016-05-25 | 苏州工业职业技术学院 | Fire alarm based on singlechip |
-
2016
- 2016-03-30 CN CN201620252298.XU patent/CN205486617U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105608829A (en) * | 2016-03-30 | 2016-05-25 | 苏州工业职业技术学院 | Fire alarm based on singlechip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |